Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

A Few Clouds

82°F

28°C

Humidity 49%
Wind Speed Calm
Barometer 29.98 in (1015.0 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 26 May 10:55 am CDT
Extended Forecast for

3 Miles ENE Ontario WI

  • Today

    Today: Sunny, with a high near 86. Southwest wind 5 to 8 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 60. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 85. Northwest wind around 5 mph becoming calm  in the afternoon.  Chance of precipitation is 30%.

    High: 85 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms between 8pm and 9pm.  Mostly clear, with a low around 53. Light northeast wind becoming east 5 to 10 mph in the evening. Winds could gust as high as 20 mph.  Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. East wind 3 to 7 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81. Calm wind.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind becoming east around 6 mph in the afternoon.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Southwest wind 5 to 8 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Northwest wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms between 8pm and 9pm. Mostly clear, with a low around 53. Light northeast wind becoming east 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 76. East wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 50. Calm wind.
Friday
Sunny, with a high near 81. Calm wind.
Friday Night
Mostly clear, with a low around 54. Calm wind.
Saturday
Sunny, with a high near 80. Calm wind becoming east around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 51. Light east wind.
Sunday
Sunny, with a high near 80. Calm wind becoming east around 5 mph.
Sunday Night
Mostly clear, with a low around 53. Calm wind.
Monday
Sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Ontario WI
 43.73°N 90.55°W
10:51 am CDT May 26, 2026
11am CDT May 26, 2026-6pm CDT Jun 1, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database